homeostasis/metabolism
• absent in lens fiber cells
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vision/eye
• absent autophagy in lens fiber cells
• disorganized in the cortical region of aged mice
• however, organelle degradation is normal
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• by 6 to 9 months that develops progressively with age
• severe, bilateral at 21 months
• with accumulation of insoluble oxidized proteins and crystallins
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cellular
• absent in lens fiber cells
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